Widewuto was a legendary king of the pagan Prussians who ruled along with his elder brother, the high priest (Kriwe-Kriwajto) Bruteno in the 6th century AD. They are known from writings of 16th-century chroniclers Erasmus Stella, Simon Grunau, and Lucas David. Though the legend lacks historical credibility, it became popular with medieval historians. It is unclear whether the legend was authentically Prussian or was created by Grunau, though Lithuanian researchers tend to support its authenticity.

Kriwe Kriwaito or simply Kriwe was the chief priest in the old Baltic religion. Known primarily from the dubious 16th-century writings of Simon Grunau, the concept of kriwe became popular during the times of romantic nationalism. However, lack of reliable written evidence has led some researchers to question whether such pagan priest actually existed. The title was adopted by Romuva, the neo-pagan movement in Lithuania, when Jonas Trinkūnas was officially installed as krivių krivaitis in October 2002.